...and systems running NetworkManager store it somewhere *else*:
$ ps -fe | grep dhclient root 27312 27292 0 Apr11 ? 00:00:00 /sbin/dhclient -d -q -sf /usr/libexec/nm-dhcp-helper -pf /var/run/dhclient-eth0.pid -lf /var/lib/NetworkManager/dhclient-e4599575-5a21-46c1-bfe3-62cb23268b69-eth0.lease -cf /var/lib/NetworkManager/dhclient-eth0.conf eth0
...and systems running NetworkManager store it somewhere *else*:
$ ps -fe | grep dhclient nm-dhcp- helper -pf /var/run/ dhclient- eth0.pid -lf /var/lib/ NetworkManager/ dhclient- e4599575- 5a21-46c1- bfe3-62cb23268b 69-eth0. lease -cf /var/lib/ NetworkManager/ dhclient- eth0.conf eth0
root 27312 27292 0 Apr11 ? 00:00:00 /sbin/dhclient -d -q -sf /usr/libexec/